.front {
    width: 100px;
    height: 100px;
    z-index: 10000;
    border-radius: 50px;
}

.back {
    width: 120px;
    height: 120px;
    position: absolute;
    left: 80px;
    top: 280px;
    opacity: 0.3;
    z-index: 1;
}

.txt1 {
    padding-left: 30px;
    padding-top: 20px;
}

.txt2 {
    position: absolute;
    left: 100px;
    top: 390px;
}

.box {
    height: 200px;
    width: 200px;
}